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#!/bin/sh

# Slackware build script for grace
# Written by B. Jogai <jogaib {at} comcast [dot] net>
# Substantially modified by Robby Workman <rworkman@slackware.com>

PRGNAM=grace
VERSION=5.1.22
BUILD=${BUILD:-1}
TAG=${TAG:-"_SBo"}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) export ARCH=i486 ;;
    arm*) export ARCH=arm ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
       *) export ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-"/tmp/SBo"}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-"/tmp"}

if [ "$ARCH" = "i486" ]; then
    SLKCFLAGS="-O2 -march=i486 -mtune=i686"
    LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
    SLKCFLAGS="-O2 -march=i686 -mtune=i686"
    LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
    SLKCFLAGS="-O2 -fPIC"
    LIBDIRSUFFIX="64"
else
    SLKCFLAGS="-O2"
    LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$VERSION
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

# Apply some miscellaneous fixup patches
patch -p0 < $CWD/patches/xmgrace-null.patch
patch -p0 < $CWD/patches/xmgrace-help.patch
patch -p0 < $CWD/patches/xmgrace-strip.patch

# The invocation of nc_inq_libvers() has changed with the newer netcdf
patch -p1 < $CWD/patches/xmgrace-netcdf.patch

# The header and library files of package fftw2 have been split
# up into single and double.  grace uses double.
patch -p1 < $CWD/patches/xmgrace-fftw.patch

# Fix paths to docs in src/xmgrace.c
sed -i "s%/usr/share/doc/packages/%/usr/lib${LIBDIRSUFFIX}/%g" src/xmgrace.c

CFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --bindir=/usr/bin \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --mandir=/usr/man \
  --enable-grace-home=/usr/lib${LIBDIRSUFFIX}/xmgrace \
  --with-x \
  --with-netcdf \
  --with-printcmd="lpr" \
  --with-helpviewer="firefox %s" \
  --build=$ARCH-slackware-linux

make
make DESTDIR=$PKG install
# Set up the links for /usr/bin, /usr/include, and /usr/lib
make DESTDIR=$PKG install links

find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

# Fix hardcoding of /usr/lib in the "links" target
if [ "$ARCH" = "x86_64" ]; then
   mv $PKG/usr/lib/*.a $PKG/usr/lib${LIBDIRSUFFIX}
   rmdir $PKG/usr/lib 2>/dev/null || true
fi

# Add desktop menu entries
mkdir -p $PKG/usr/share/{applications,pixmaps}
cat $CWD/xmgrace.png > $PKG/usr/share/pixmaps/xmgrace.png
cat $CWD/xmgrace.desktop > $PKG/usr/share/applications/xmgrace.desktop

mkdir -p $PKG/usr/doc
mv $PKG/usr/lib${LIBDIRSUFFIX}/xmgrace/doc $PKG/usr/doc/$PRGNAM-$VERSION
cp -a CHANGES ChangeLog README DEVELOPERS LICENSE \
    $PKG/usr/doc/$PRGNAM-$VERSION
find $PKG/usr/doc/$PRGNAM-$VERSION -type f -exec chmod 644 {} \;
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
( cd $PKG/usr/lib${LIBDIRSUFFIX}/xmgrace  # now make the compat symlink
  ln -s ../../doc/$PRGNAM-$VERSION doc 
)

# We're going to leave the man pages where they are, since grace (might|does)
# look for them in its docs dir. Since grace might still use them directly,
# we're going to leave them uncompressed. Don't fuss - disk space is cheap  :-)

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc
cat $CWD/doinst.sh > $PKG/install/doinst.sh

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}